Phone Ring Notification No Longer Shows after recent Android update to 7.0

[AC Question]

Android version: 7.0
Android security patch level: October 5, 2016
Model Number: Nexus 6P
Kernel Version: 3.10.73-g875b816
android-build@vpec2.mtv.corp.google.com #1
Wed Aug 24 19:56:53 UTC 2016

Ringer status: Vibrate and Sound on

Phone vibrates, and the ring tone plays. Only way to answer phone is to open phone app, but you cannot hit the Circle to return to home screen if you're in another app (it doesn't work/freezes). If you have home screen available, you can tap the phone app, which will then prompt you to return to the phonecall in progress, which will then display the normal incoming call screen and allow you to pickup the call.

Please advise as to a fix.

 

[Funkihunter]

Go to the notification settings for your device and check under "Blocked". If it's under there, go to it and enable your notifications again.